Means for removably mounting gage-cocks.



No.,7`65,524. w

PATENTED JULY 19, 1904.

J. N. TYsoN. n MEANS .PoR NNMOV'ABLY MOUNTING GAGE 000K APPL'mATIoNFILED M112, 19153.

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- Afro/hv Wl TN E SSE S.'

UNITED STATES JAMES ROBERT TYSON, OF

MEANS FOR REMOVABLY SPECIFICATION forming part of Letters Applicationled May l2, 1903.

4 To all whopt it 11m/y concern.-

`Be it known that 1, J AMES ROBERT TYsoN, a citizen of the UnitedStates, and a resident oi' Reading, in the county of Berks and State ofPennsylvania, have invented new and useful Improvements in Means forRemovably Mounting Gage-Cocks, of which the following is a i'ull, clear,and exact description.

My invention relates to a device by which gage-cocks may be easily andquickly disconnected from steam-boilers without reducing -theboiler-pressure.

In the practical use of gage-cocks it is found that they fail toindicate the true water-level oi' a boiler owing to clogging of thepassage in the cock by the accumulation of sediment which is present inthe water. It is customary to dismount the gage-cock'for the purpose ofcleaning it or replacing it by anew cock; but with ordinary appliancesthis necessitates drawing of the rires under the boiler and thereduction of pressure therein.

The object of this invention is to overcome these objections by theprovision of a simple, cheap, and eiicient contrivance adapted to form apart of the boiler when in place and capable of adjustment in a way tocut oil? communication between the gage-cock and the interior of theboiler, so that the cock can be attached and detached without reductionot' the boiler-pressure.

Further objects and advantages of the invention will appear in thecourse of the subjoined description, and the novelty will be de- `linedby the annexed claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference in dicatecorresponding parts in all the iigures.

Figure 1 is an elevation looking at the outside of my improved devicefor mounting gagecocks in a boiler. Fig. 2 is a sectional elevationthrough the improved device. Fig. 3 is a front elevation, partly brokenaway and in section, of another embodiment ot' the invention. Fig. 4 isa longitudinal section of theV device shown by Fig. 3. Fig. 5 is asectional view showing a portion of a shell in which a gage-cock ismounted by a device of my invention.

Patented July 19, 1904.

PATENT OFFICE.

READING, PENNSYLVANIA.

MOUNTING. eAeE-CooKs.

Patent No. 765,524, dated July 19, 1904.

Serial No. 156,780. (No model.)

A designates a portion of a boiler-shell in which it is desirable todetachably mount a gage-cock B. It is customary to tit the gagecockdirectly in the shell; but when the gagecock is clogged the pressure inthe shell must be reduced before the cock can be withdrawn. I overcomethis objection by the provision of a bushing, which is mounted in theshell and to which the gage-cock is detachably connected. In Figs. 1 and2 of the drawings I have shown one form of construction of my improvedbushing, the same consisting oi' an outside member 5 and an insidemember 6. rlhe members 5 6 are closed at their inner ends by means ofheads 7 8, respectively, which, as shown by Fig. 2, are curved onconcentric lines, whereby the inside shell 6 and its hood 8 may belitted snugly or tightly within the outside shell 5 and its head 7. Theexternal shell is provided at its front extremity with a ilange 9,preferably of hexagonal shape, in order that a wrench or other implementmay be applied thereto for the purpose of securing the external shell ina threaded aperture provided in the shell A of the tank or boiler. It isto be understood that this external shell 5 is provided with a malethread 10 for a part of its length, thus enabling the bushing to bescrewed into the shell A. r he internal shell or member 6 of the bushingextends through the open front end of the external member 5, saidinternal shell or member 6 having at its front extremity a flange 11,which is provided with angular faces or edges for the application of asuitable wrench. The internal shell or member 6 is provided with afemale thread 12 for a part of its length, said threaded part of theinternal member forming a socket, into which the gagecock B ore-otherdevice maybe screwed. The external and internal members 5 6 are providedwith transverse ports 13 14, said ports 14 being formed in the heads 7 8of said members 5 6, while the ports 13 are in the cylindrical portionsof said members. The internal member 6 is titted steam-tight in theexternal member 5, preferably by grinding one member within the other ina manner well known to those skilled in the art, and this internalmember 6 is capable of a turning movement on its IOO ' in the externalmember 5.

longitudinal axis for the purpose of adjusting the ports 13 14 thereinout of coincidence with the similar ports 13 14 in the external member.The extent of turning movement of said internal member within theexternal member is limited by stops 15, which are shown in the form ofscrews that are tapped into the flange 9 of the external member and arearranged to play in segmental slots 16, which are formed in the flange11 of the internal turnable member 6.

The form of construction shown by Figs. 3 and 4 comprises a two-partbushing having its members fitted fluid -tight one within the other in asimilar way to the construction shown by Figs. 1 and 2. The modificationconsists in the change of the shape of the inner ends of the members andin the employment of a pivotal bolt 17, which passes through the heads 78 of said members. The members 5 6 are cylindrical throughout theirlength and are provided with the heads 7 8, which are at right angles tothe axes of said members 5 6. The member 5 has the threaded portion 10and the flange 9 and the ports 13, while the head 7 of said member 5 hasthe ports 14 on opposite sides of the pivotal bolt 17. The internalmember 6 has the flange 11, the socket 12,v and the ports 13, while thehead 8 of said internal member is formed with the ports 14. The flange11 of the internal member is provided with arcuate slots 16, throughwhich pass the stop-screws 15, that are attached to the flange 9 of theexternal member. The pivotal bolt 17 is shown as passing through theheads 7 8 of the members to receive an external nut 13. This pivotalbolt is located centrally with respect to the members in order that themember 6 may turn on its axis within the limits permitted by the slots16 and the screws 15, and said bolt 17 serves to strengthen or reinforcethe bushing' at the inner ends of the members.

embody the pivotal bolt 17, which passes through the curved heads 7 8thereof.

In the service of my improved device the threaded part 10 of theexternal member 5 is screwed into a threaded hole provided in the shellA. The inner end of the bushing extends into the chamber, which containsa fluid under pressure, while the flange 9 of the external member 5 hasabutting engagement with the outside of the shell A, thus placing theangular flanges 9 11 within convenient reach of the operator. Thegage-cock B may now be screwed into the threaded socket 12 of theinternal member 6, after which this member should be turned on its axisfor a sufficient distance to bring its ports 13 14 into registrationwith the corresponding ports The fluid under pressure is now free toenter the bushing and the gage-cock B, which is attached to saidbushing. To dismount the gage-cock, the op- It is evident that theconstruction shown by Figs. 1 and 2 may erator should first turn themember 6 in a backward direction in order to adjust its ports 13 14 outof registration with the ports of the external member in order to closesaid ports of the internal member and prevent the fluid under pressurefrom passing from'said shell A into the bushing. The gage-cock B may nowbe dismounted without reducing the pressure in the shell A, so that saidgage-cock may be cleaned and replaced or a new cock may be connected tothe bushing.

An important advantage connected with the practical use of my inventionconsists in the quick adjustment of the bushing for cutting od theescape of steam in the event of a railroad accident. It is well knownthat human lives are sometimes lost by escape of steam when a locomotiveunder full boiler-pressure is wrecked; but the use of my bushing enablesthe connections to be easily and quickly cut of from communication withthe boiler.

In my construction the screws 15 have threaded engagement with theflanged outer member, and the heads thereof bear on the slotted flangeof the inner member, said screw heads being normally exposed outside ofthe bushing and the boiler-shell, so that ready access may be obtainedto the screws for adjusting them. This construction is advantageousbecause provision is thereby made for clamping the two members of thebushing solidly together in a way to effectually overcome leakage ot'the fluid under pressure and while the bushing and the gage-cock areapplied to the boiler. The two members of the bushing are groundtogether to secure a tight frictionjoint; but it is found that leakageis liable to occur after a time. To overcome this, I provide theset-screws, which are always accessible to tighten up the members andwhich serve the further purpose of a stop in limiting' the axialturning' movement of the inner member when opening or closing thebushing.

Cross reference is hereby made to my companion application filedDecember 3, 1903, Serial No. 183,573, the subject-matter of which is abushing comprising two members, each having' an opening' and a flange,the outer member being threaded and the inner member having a socket,the flange of the inner member being provided with arcuate slots, andscrews threaded in the flange of the outer member and effective inclamping the two members endwise and in limiting theA axial turningmovement of the inner member.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A means for mounting and dismounting gage-cocks inboilers comprising a two-part bushing, each member of which is providedwith a rounded inner end and with a flanged outer end, the rounded endof the inner member fitting snugly to the corresponding end of the outermember, and both members having a plurality of ports which are adaptedto be brought IOO IIO

into or out of registration by an aXiaHy-turn- In testimony whereofIhave signed my name mg movement ofV the 1nner member, sald mto thlsspeeltoetlon in the presence of two subner member havmg 1n lts flange aplurahty serblng w1tnesses.

of arcuate slots, and externally-accessible JAMES ROBERT TYSON. 5 screwsthreaded n the Hanged outer member Witnesses:

and passing through the slots of the flange of F. PIERCE HUMMEL,

the inner member. GEO. S. HUMMEL.

